Dust-guard.



E. PEGKHAM.

DUST GUARD.

APPLICATION FILED MAR. 23, 1908.-

3 SHEETS-SHEET 1.

Patented Dec. 1

ATHN

E. PBGKHAM.

DUST GUARD.

APILIOATION FILED MAB, 23, 1908.

Patented Dec. 1, 1908 3 SHEETS-SHEET 2 NV N701? a g B) w ATTHNEYS runsrATEs PATENT corn-ion...

.;EDGAR EECKHAM, OF WESTMINSTER, LONDON, ENGLAND, .ASSIGNOR TQGHARLEEE'DUELL,

TRUSTEE, OF NEW YORK, N. Y.

"DUST-GUARD y no. corneas.

r Specification of Letters Patent.

. ,Patentedl'mc. 1,

1" Applidaltionflled March 23, 1998.: Serial1o..l22,'7o7.

To-alflwhom it may concern:

Be it known that IQEDGAR 'PECKI-IAM, a citizen ofthj'UnitedStates,residing at Westminster, LOHOIIy S. in the county of Middlesex,"England, have invented certain new and useful Improvements in Dust-Guards, of which the'following is a full,

clear, and exact description, such as will en-:

able others skilled in the art to which it appertains to make and usethesame.

The present invention-relates to-bearin s, and more particularlytojournal boxes or the axles of railway and tramway cars and similarvehicles. Oneof the objects of the invention is to provide improvedmeans whereby a journal- -box maybe kept hermetically closed for aconsiderable period of time, thereby pre-i venting an escape of oilorother lubricant therefrom and preventing the entrance of.

- dust or grit into the interior of the box.

Another object, hereof is to provide a packing for the axle of ajournal, box of the above character, which may be readily positionedupon the-axle and conveniently adjusted thereon by means extendingexte-1 riorly of the box and capable of manipulationfrorn a positionexterior thereto.

Other objects will be in part obvious and in part pointed outhereinafter.

The invention accordingly consists in the features of construction,combinations of ele- -ments-a'nd arrangement of parts which will beexemplified in the construction hereinafter set forth, and the scope ofthe up ,li-' cation of'which will beindicated in the .ol-

" journal'box; Fig. 7 is a longitudinal sectional view showing aslightly difiterent embodiment of the invention.

Similar reference characters refer to similar parts throughout theseveral figures of the drawings.

a Referringnow to the.:drawings,.and pan 'ticul'arly to Figs. 1' to 6'inclusive, I-represents the casing 'ofthejournal box which.

maybe provided in its upper =forwardp'ortion with a. removable cover2,:adapt'ed togbe bolted thereto as shown, said cover beingprovided inits upper portion with a screw threaded opening normally closed by ascrew plug 3. Through this opening the oil-or other lubricant may beinserted into the box.

Formed at the rear portion of casingl is a chamber 4, said chamberbemgin the present instance constituted by an inner apertured wall 5, whichseparates thechamber-from the journal box proper and an outer aper turedwall 6. The axle extends through the re 'aperturesof "walls 5 and 6 intothe journal box as shown. In the present-embodiment of my invention thewe 1 the chamber constituted by independent arts and bolted to thecasing of the journal ox,' by reason of the .fact that it isanadvantagetodispense with bolts wherev'eripossible, particularly if the journalboxes. are so to be employed on vehicles intended to be run at highspeeds.

' The top and bottom portionsof chamber 4 are provided with openings 7and 8, as

clearly shown in'Figs. 3 and 5 of the drawings, in order to permit offree access into the interior of-the chamber, such construction.enabling the inner wall 5 to be':conveniently machine finished. Theouterwali 6 of chamber 4 at its sides, is providedwithfifl beveled orinclined surfaces 9 and 10, as

shown 'in Figs. 3 and 5, for a purposewli'ich will be apparenthereinafter.

The chamber 4, winch for convenience may be termed a packing chamber,1s, as

shown, rectangular in shape and is adapted to receive packing for theaxle.

- 11 indicates a packing member formed of flexible fibrous materialpreferably leather,

said packing member being provided with a rectangular or squared baseportionlQ and adapted to seat against the inner Wall of the packingchamber and having an annular flange portion 18 which extends outwardlyat substantially a right angle from the base portion 12, and is adaptedto lie in contact with the axle.

Positioned about packing member 11 1s a s of chamber 4' are formedintegral wlth the walls ofcasing 1, such construction being preferabietohav ing 7 5 -22 and forming a seat metallic member 14 preferably formedof metal having a squared base I portion 15 which seats against thecorrespondingly shaped base portion 12 of the packing member and with aprojecting annular flange 16 which extends outwardlyin a directionsubstantially parallel with the axis of the axle. Inasmuch as baseportion 15 of member 14 is squared and takes against the side walls ofchamber 4, as shown in Fig. 4, it is thereby prevented from rotatingwith the axle. Member 14 constitutes a stuffing box for the axle. and isadapted to receive beneath flange 16 a pair of packing rings 17 and 18respectively, said packing rings being interposed between the flange andthe annular portion 13 of the packing member. Packing ring 17 ispreferably formed of a fibrous-material, and is beveled as shown; andthe other packing ring, indicated at 18, is preferably beveled in anopposite'direction and preferably formed of metal. with their beveledfaces in contact, as shown in Fig. 3 of the drawings, the constructionbeing such that pressure exerted in a direction toward the inner Wall ofthe packing chamber will cause said rings'to force the annular portion13 of the packing member toward the axle, and will cause the baseportion of the member 14 or stufling box to press the squared portion 12of the packing member against the inner wall 5 of the packing chamber.

Means are provided for pressing the beveled packing rings together andwhereby the packing member is held firmly in contact with the inner wallof the packing chamber. This means, in the present instance, isconstituted by a member 19 which. is provided with a pair of dependingwedge shaped legs 20 and 21 whi h straddle the axle and work upon theinclined or beveled portions 9 and 10 of the outer Wall of the packingchamber. Member 19 is provided with lateral end extensions or hornsadapted to receive adjusting bolts 22, said bolts extending downwardlythrough apertured cars '23 formed exteriorly of the packing chamber. Inthe present instance, a dust guard or cap 24 is provided for closing thelower opening of the packing chamber, said guard being apertured asshown to receive the adjusting bolts for nuts 25 threaded upon the endsof said bolts. .It will be understood thatby turning of the nuts 25 upontheir respective bolts the wedge shaped legs of member 19 may be dratwnalong the inclined portions of the outer wall of the packing chamber,said operation causing the beveled packing rings to cot perate with themetallic member 14 to compress the squared and annular portions of thepacking member against the inner wall of the packing chamber and theaxle respectively.

In Fig. 7 of the drawings, I have shown a These packing rings he thescope thereof, it

slightly different embodiment of my invention in that the beveledportions of the outer wall of the packing chamber are omitted, and twocooperating wedge members 26 and 27 are shown, said wedge members beingin serted through the top and bottom apertures of the packing chamberand having their outer ends connected by adjusting bolts in the mannershown in Figs. 1 and 3 of the drawings. These wedge members may beadjusted toward or from each other by manipulating the nuts of theadjusting bolts, as will be readily understood.

It, will accordingly be seen that I have provided a construction welladapted to attain, among others, all the endsand objects aboveenumerated in a simple and efiicient manner. ofthe inner Wall of thepacking chamber may be convenientl machined to receive the base portionof the,packing member through the openings in the top and bottomportions of said chamber. These openings also permit of an easy accessto the interior of the chamber. The packing member may be held againstthe inner wall of the packing chamber as well as against the axle withany desired degree of pressure, and efi'ect-' ively held thereagainst bymeans of the wedge members interposed between the packing rings and theouter wall ofthe packing chamber. The'amount of pressure exerted by thepacking member against said parts may be conveniently adjusted, asdesired, from a position exterior to the journal box. A furtheradvantage inherent in the present construction resides in the fact thatthe stuffing box, as well as the packing'memher, are squared to engagethe vertically disposed walls of the packing chamber, and are therebyeffectively prevented from rotating with the axle no matter with whatdegree of pressure the packing member is held in contact with the axleor with the inner wall of the stutfing box.

As many changes could be made' in the above construction and manyapparently widely different embodiments of this invention could be madeWithout departing from ter contained in the above description or shownin the accompanying drawings 'shall be interpretedas illustrative andnot in a limiting sense.

Having described my invention, what I claim as new and desire to secureby Letters Patent, 1s

1. In a bearing of the class described, the combination with the axle,of an axle box having a rectangular packing chamber at Its rear end, aflexible packing member havmg a squared portion adapted to lie incontact with the inner wall of the packing chamber and an annularportion adapted to lie in contact with th As will be obvious, the outerfaces is intended that all mat- 115 e axle, a pair of 00- I30 actingbeveled rings adapted to force said packing member against said partsand means adapted to wedge said rings into operative position.

.2. In a bearing of the class described, the combination with the axle,of an axle box having a rectangular packing chamber, a

flexible packing member having a squared portion adapted to seat againstthe inner wall of the packing chamber and an annular portion adapted tolie in contact with the axle, a metallic stul'ling box constructed toform a seat for the squared portion of the packing member, meanscomprising a pair of co-acting beveled rings located in said stuffingbox and wedging means tor forcing the same into contact with saidpacking member, whereby the same is held in close contact with the innerwall of said chamber, said beveled rings also coiiperating with saidstuiling box to hold the. annular portion of said packing member incontact with the axle.

3. In a bearing of the class described, the combination with-the axle,of an axle box having a packing chamber at its rear end, a flexiblepacking member seating against the inner wall. of said chamber andagainst the axle, a metallic member surrounding said packing member, andone or more beveled members located within said metallic member adaptedto force the same against said. packing member and hold the latter incontact with the inner wall of said chamber and also against said axle.

4-. In a bearing of the class described, the combination with the axle,of an axle box having a packing chamber at its rear end, a flexiblepacking member seating against the .inner wall. of said chamber, andhaving a flanged portion surrounding the axle, a metallic ringpositioned about the flanged portion of said packing member, a pair ofcotiperating beveled members located within said ring, and wedging meanscooperating with said beveled. members to cause said ring to press saidpacking member against the inner surface ot the packing chamber, saidbeveled members cooperating to force the flanged portion of the packingmember against the axle.

in a bearing of the class described, the cmnbination with the axle, ofan axle box having a packing chamber, a fibrous packing member adjacentthe inner wall of the chamher and the axle, a metallic stufhng boxadacent said oackin member iackin rin s 1 a v t: a;

located within said stuffing box, and means interposed between the outerwall of the pack ng chamber and saidpacking rings i adapted to compressthe packing member and hold the same firmly against the inner wall ofthe packing chamber and the axle.

6. In a. bearing of the class described, the combination with the axle,of an axle box having a packing chamber at its rear end, a

flanged annular, fibrous packing member arranged adjacent the inner wallof the chain.

her and the axle, a metallicstulfing box positioned about said packingmember, 8,5111 rality of beveled packing rings locate I in said stallingbox, and wedging meansv 1nte1'-- posed between the outer wall of thepacking.

chamber and said packing rings for compressing the packing memberagainst the inner wall of the packing chamber and the axle.

'7. In a bearingof the class described, the

combination with the axle, of an axle b0): .80..

provided with a packing chamber at its rear" end, a flexible, flangedannular packing member arranged adjacent the inner wall of the packingchamber and the axle, a metallic member surrounding said packing memberand havinga base portion which formsa which lies adjacent the inner wallof the packing chamber, and having an annular, flanged portion whichlies'substantially parallel with the axis of the axle, packing ringslocated between said flange and the portion of the packing member lyingadjacent the axle, and compression means cooperating with said packingrings for forcing the base portion of said metallic member against thepacking member,.whereby the latternlay be held in close contact withthenner wallof seat for the portibn of the packingmembcrsaid chamber, said'compressionmeans also cotiperating with said packing rings fpr holdingsaid packing member in close contactwith the axle.

8. In a bearing of the class described, the

combination with the axle, of an axle box provided with av rectangularshaped packing chamber, a flexible, flanged annular packing memberarranged adjacent the inner wall of the packing chamber and the axle, ametallic member surrounding. the packing member, and having a base,portion which forms a seat for that portion of the packing memberarranged adjacent the inner wall of the packing chamber, said-metallicmember also having an outwardly projecting flange, a plurality ofpacking rings arranged between said flange and that portion. of thepacking member arranged ad jacent'the axle, and a wedge coiiperatingwith the outer wall of the packing chambeiuand with said packing ringsand annular member to hold packing member in close contact with theinner wall of the packing chamber and the axle.

9. In a bearing of the class described, the combination with the axle,of an. axle box having a rectangular packing,chambcr atits rear end, aflexible, fibrous packing member having a squared portion arrangedadjacent axle, a metallic ring positioned about the wardly extendingannular packing member,

annular portion of said forms a seat for position.

ing rings, and

10. In a bearing of the class described, the combination with the axle,of an axle box having a rectangular packing chamber at its rear end,said packing chamber having an opening in its upper portion, the innerand outer walls of said chamber having openings for receiving the axle,a packing member, having a squared portion formed to seat against theinner wall of the packing cham her, and having an angularly disposedportion surrounding the axle, a metallic member positioned about saidpacking member and having a base portion which seats against the squaredportion thereof, and having a flange which extends outwardly,substantially parallel with the axis of the axle, a plurality of beveledpacking rings interposed between said flange and the portion of thepacking member adjacent the axle, a member having a pair of dependingwedges which extend downwardly through the opening in the upper portionof the packing chamber, and which straddlethe axle, said wedges beinginterposed between the outer *all of the packing chamber and. said packmeans for connecting said the packing member,

I member with the axle box and for adjusting l the same with respect tosaid packing rings. 11. In a bearing of the class described, the Icombination with the axle, of an axle box having a rectangular packingchamber at its rear end, said packing chamber having an opening in itsupper portion, the inner and outer walls of said chamber having openingsfor receiving the axle, a packing member having a squared portion formedto seat against the inner wall of the packing chamher and having anangularly disposed portion surrounding the axle, a metallic memberpositioned about said packing member having a base portion which seatsagainst the squared portion thereof and having; a flange which extendsoutwardly substantially parallel with the axis of the axle, a pluralityof beveled packing rings interposed between said flange and the portionof the packing member adjacent the axle, a member having a pair ofdepending Wedges which extend through one of the openings of the packingchamber and which straddle j the axle, said wedges being interposed be-I tween the outer wall of the packing chamber j and said packing rings,and a plurality of j bolts for connecting said member with'the axle boxadapted for adjusting said member with respect to said ing the same infixed position after adjustment. 7

In testimony whereof I aflix my signature, i the presence of twoWitnesses.

' EDGAR PECKHAM.

Witnesses D. EDWARD DAVIES, lVAL'rnn FRANCIS JOHNSON.

r' I l I ackin rnws and hold-

